The numbers are the picture.

Each clue lists the runs of filled squares in that line, in order, with at least one gap between them. Work out which squares they must be.

Choose a size

Drag to fill a run in one go. Switch to Cross to rule squares out — crosses are how you keep track, and they never count against you. Every puzzle is checked by a solver before you see it, so it has exactly one answer and never needs a guess.